Search results for "IMAGES"

Staging American Nights : Représentations de l’intime et mises en scène de la nuit aux Amériques

2020

Aux rêveurs noctambules de tout temps, aux « dériveurs » nocturnes, la nuit est réservoir de symboles, éveil d’un monde intérieur, souvenirs et obsessions intimes, révélation de l’inconscient, autre jubilation dionysiaque. Rêve d’encre aussi, veille des créateurs dans la nuit théophanique quand mystique de la nature et mystique intime s’y lovent : c’est la nuit obscure de St-Jean de la Croix, ténèbres de l’âme abandonnée, et la Sainte pénombre des pré-romantiques et romantiques allemands (Goë...

Iterative geometric modelling and new world of shapes

2010

Mes recherches ont pour cadre la modélisation géométrique pour la Conception Assistée par Ordinateur et la Synthèse d'images. Plus précisément, j'étudie les possibilités qu'offrent les procédés de construction itératifs basés sur le principe de la géométrie fractale. Partant du modèle IFS (Iterated Function System), nous avons montré qu'il est possible de modéliser des formes non conventionnelles et ainsi de donner accès à un nouvel univers de formes aux concepteurs, artistes et designers. Cette approche est notamment utilisée pour modéliser des surfaces plissées (comme pour la réalisation de coques en architecture) ou des surfaces rugueuses. Nous avons orienté nos travaux sur la notion de …

Jubileusze małżeńskie świadectwem znaczenia przysięgi małżeńskiej

2017

In recent times thorough changes concerning the treatment of the wedding vows take place. One of the ways to create a positive approach to marriage seems to be a solemn observation of marriage jubilees .The paper deals with the historical process of the development of the forms of observance concerning wedding anniversaries. However the main emphasis is put on the rites of wedding anniversary in post conciliar liturgical books. The reader may also become aware of the idea and history of pilgrimages organized on the occasion of the silver and golden marriage jubilees, considering also a strong and clear testimony to the importance of the wedding vows.

Fast prototyping of parallel image processing applications using functional skeletons

1999

We present SKiPPER, a software dedicated to the fast prototyping of vision algorithms on MIMD/DM platforms. This software is based upon the concept of algorithmic skeletons, i.e. higher order program constructs encapsulating recurring forms of parallel computations and hiding their low-level implementation details. Examples of such skeletons in low- to mid-level image processing include such as geometric decompositions, data or task farming. Each skeleton is given an architecture-independant functional (but executable) specification, a portable implementation as a process template and an analytic performance model. The source program is a purely functional specification of the algorithm in …

On Photometric Analog Computers for Statistical Purposes

1959

3D MODELING of A COMPLEX BUILDING: From MULTI-VIEW IMAGE FUSION to GOOGLE EARTH PUBLICATION

2019

Abstract. This paper presents a pipeline that aims at illustrating the procedure to realize a 3D model of a complex building integrating the UAV and terrestrial images and modifying the 3D model in order to publish to Google Earth in an interactive modality so as to provide better available models for visualization and use. The main steps of the procedure are the optimization of the UAV flight, the integration of the different UAV and ground floor images and the optimization of the model to be published to GE. The case study has been identified in a building, The Eremo di Santa Rosalia Convent in Sicily which hash more staggered elevations and located in the hills of the hinterland and of w…

BIFOCAL PAIRS OF IMAGES FOR LOW-COST SURVEY IN CLOSE RANGE PHOTOGRAMMETRY

2019

Abstract. This paper present a method for close range photogrammetry based on an camera positioning scheme in which two cameras capture an equal portion of an object at the same scale, but have different focal lengths and camera-to-object distances. This scheme is alternative to the stereoscopic scheme and is associated with a system of equations which permits one to calculate first the relief displacement of points on a photograph and then their relief relative to a reference plane. The obtained relief and relief displacement values can be used to produce low-cost orthophotographs by using software for image processing, which doesn’t need to be dedicated, but has to provide measurement and…

IMAGE-BASED MODELING TECHNIQUES FOR ARCHITECTURAL HERITAGE 3D DIGITALIZATION: LIMITS AND POTENTIALITIES

2013

Abstract. 3D reconstruction from images has undergone a revolution in the last few years. Computer vision techniques use photographs from data set collection to rapidly build detailed 3D models. The simultaneous applications of different algorithms (MVS), the different techniques of image matching, feature extracting and mesh optimization are inside an active field of research in computer vision. The results are promising: the obtained models are beginning to challenge the precision of laser-based reconstructions. Among all the possibilities we can mainly distinguish desktop and web-based packages. Those last ones offer the opportunity to exploit the power of cloud computing in order to car…

Breakthroughs in Photonics 2014: Recent Advances in 3-D Integral Imaging Sensing and Display

2015

Integral imaging concept provides a fascinating tool for the capture and display of 3-D images or movies with full parallax, with no need for special glasses and without visual fatigue due to the convergence and accommodation conflict. The limitations and recent advances in integral imaging are discussed.

Reconstruction of urban sites from photos

2019

Abstract. This paper reports the results of an experiment that aims at the virtual reconstruction of a urban site that has been partially reshaped during the 20th century; the reconstruction process is based on period photos. The chosen case study is the eldest harbour of Palermo, named ‘Cala’; the site was bombed during World War II and new buildings took the place of the ruined ones. Two period photos, taken from an aircraft, document the buildings that were destroyed by bombs. The 3D restitution process used the ‘inverse’ projection from period photos (2D) to the virtual space (3D) ; the first step was therefore addressed to the calculation of the inner parameters (focal length, principa…